In chinyorwa chekupedzisira, takaunza kubuda kwevanoparadzira, mamwe maitiro uye mabasa evanoparadzira. Muchikamu chino, tichaongorora mhando dzevanoparadzira munguva dzakasiyana nenhoroondo yebudiriro yevanoparadzira.

Traditional low molecular weight wetting and dispersing agent
Iyo yekutanga kuparadzira yaive triethanolamine munyu wemafuta acid, iyo yakatangwa pamusika makore angangoita zana apfuura. Iyi dispersant inoshanda zvakanyanya uye ine mari mune zvakajairika maindasitiri pendi maapplication. Izvo hazvigoneke kuishandisa, uye kuita kwayo kwekutanga mune yepakati mafuta alkyd system haina kuipa.

Mumakore ekuma1940 kusvika kuma1970, ma pigment aishandiswa muindastiri yekupfekedza akanga ari inorganic pigments uye mamwe organic pigments aive nyore kuparadzira. Madispersants panguva iyi aive zvinhu zvakafanana neasurfactants, aine pigment anchoring boka kune imwe mugumo uye resin inoenderana chikamu kune mumwe mugumo. Mamorekuru mazhinji aingova nepigment imwe chete yekumisa nzvimbo.

Kubva pakuumbwa kwemaonero, vanogona kukamurwa kuva mapoka matatu:

(1) fatty acid inobuda, kusanganisira fatty acid amides, fatty acid amide salts, uye fatty acid polyethers. Semuyenzaniso, iyo yakagadziridzwa mafuta asidhi ane mabhuroko akagadzirwa neBYK muna 1920-1930, ayo akaiswa munyu nemacheni marefu-amines kuti awane Anti-Terra U. Kune zvakare BYK's P104/104S ine yakakwira inoshanda magumo mapoka anoenderana neDA kuwedzera maitiro. BESM® 9116 kubva kuShierli inodzikisira inoparadzira uye yakajairwa yakapararira muindasitiri yeputty. Iyo ine yakanaka wettability, anti-kugadzirisa zvivakwa uye kuchengetedza kugadzikana. Inogonawo kuvandudza anti-corrosion properties uye inoshandiswa zvakanyanya mu anti-corrosion primers. BESM® 9104/9104S zvakare yakajairwa inodzorwa flocculation dispersant ine akawanda anchoring mapoka. Inogona kuumba chimiro chetiweki kana yakaparadzirwa, iyo inobatsira zvikuru mukudzora pigment sedimentation uye ruvara runoyangarara. Sezvo fatty acid derivative dispersant mbishi zviwanikwa zvisisatsamira petrochemical raw materials, zvinogonekwazve.

(2) Organic phosphoric acid ester polymers. Rudzi urwu rwe dispersant ine universal anchoring kugona kune inorganic pigments. Semuyenzaniso, BYK 110/180/111 uye BESM® 9110/9108/9101 kubva kuShierli madhizaini akanakisa ekuparadzira titanium dioxide uye inorganic pigments, ine yakanakisa kudzikisa viscosity, kukura kwemavara uye kuchengetedza kuita. Pamusoro pezvo, BYK 103 uye BESM® 9103 kubva kuShierli zvese zvinoratidza zvakanakisa kudzikisa viscosity zvakanakira uye kugadzikana kwekuchengetedza pakuparadzira matte slurries.

(3) Non-ionic aliphatic polyethers uye alkylphenol polyoxyethylene ethers. Huremu hwemamorekuru emhando iyi yekuparadzira kazhinji isingasviki 2000 g/mol, uye inotarisisa zvakanyanya pakupararira kweinorganic pigments uye mafirita. Vanogona kubatsira kunyorovesa pigment panguva yekugaya, zvinobudirira adsorb pamusoro peiyo inorganic pigments uye kudzivirira stratification uye kunaya kwemavara, uye vanogona kudzora kuyerera uye kudzivirira anoyangarara mavara. Nekudaro, nekuda kwehuremu hudiki hwemamorekuru, havagone kupa hunobudirira steric chipingamupinyi, uye havagone kuvandudza kupenya uye kusiyanisa kwepende yefirimu. Ionic anchoring mapoka haagone kushambadzwa pamusoro peiyo organic pigments.

High molecular weight dispersants
Muna 1970, organic pigments yakatanga kushandiswa muhuwandu. ICI's phthalocyanine pigments, DuPont's quinacridone pigments, CIBA's azo condensation pigments, Clariant's benzimidazolone pigments, nezvimwe zvese zvakagadzirwa uye zvakapinda mumusika muma1970s. Yekutanga yakaderera mamorekuru uremu hwekunyorova uye kuparadzira maajenti akange asisagone kudzikamisa ma pigment aya, uye matsva epamusoro mamorekuru ekuparadzira huremu akatanga kugadzirwa.

Mhando iyi yekuparadzira ine huremu hwemamorekuru hwe5000-25000 g/mol, ine nhamba huru yemapoka epigment anchoring pamorekuru. Iyo polymer main cheni inopa kuenderana kwakakura, uye iyo yakagadziriswa mativi cheni inopa steric chipingamupinyi, kuitira kuti pigment zvimedu zvinyatso mu deflocculated uye yakagadzikana mamiriro. High molecular weight dispersants inogona kudzikamisa mavara akasiyana-siyana uye kugadzirisa zvachose matambudziko akadai seruvara runoyangarara uye kuyerera, kunyanya kune organic pigment uye kabhoni dema ine diki diki saizi uye nyore kuyerera. High molecular weight dispersants ese ari deflocculating dispersants ane akawanda pigment anchoring mapoka pane molecular cheni, ayo anogona kudzikisa zvakanyanya viscosity yeruvara paste, kuvandudza pigment tinting simba, pendi gloss uye kujeka, uye kunatsiridza kujeka kweakajeka pigments. Mumvura-yakavakirwa masisitimu, yakakwira molecular uremu dispersants ine yakanakisa yekudzivirira mvura uye saponification kuramba. Ehe, high molecular weight dispersants inogonawo kuva nemimwe migumisiro, iyo inonyanya kuuya kubva kune amine value ye dispersant. Kukosha kweamine kuchaita kuti kuwedzera viscosity ye epoxy systems panguva yekuchengetedza; yakaderedzwa activation nguva yezvikamu zviviri zve polyurethanes (uchishandisa anonhuwirira isocyanates); kuderedzwa reactivity ye-acid-curing systems; uye isina simba inokonzeresa mhedzisiro yecobalt catalysts mumhepo-inoomesa alkyds.

Kubva pakuona kwechimiro chemakemikari, rudzi urwu rwekuparadzira rwunonyanya kukamurwa kuva mapoka matatu:

(1) Yakakwira molecular uremu polyurethane dispersants, ayo akajairika polyurethane dispersants. Semuyenzaniso, BYK 160/161/163/164, BESM® 9160/9161/9163/9164, EFKA 4060/4061/4063, uye chizvarwa chazvino che polyurethane dispersants BYK 2155 neBESM® 9248 yevateereri vekare vakabuda. Iyo ine yakanaka viscosity kudzikisa uye ruvara rwekuvandudza zvivakwa zve organic pigment uye kabhoni dema, uye yakambove yakajairwa disperant ye organic pigments. Chizvarwa chazvino che polyurethane dispersants chakavandudza zvakanyanya kudzikisa viscosity uye kuvandudza kwemavara. BYK 170 uye BESM® 9107 inonyanya kukodzera kune acid-catalyzed systems. Iyo dispersant haina kukosha kweamine, iyo inoderedza njodzi yeagglomeration panguva yekuchengetedza pendi uye haina kukanganisa kuoma kwepende.

(2) Polyacrylate dispersants. Aya anoparadzira, akadai seBYK 190 uye BESM® 9003, ave epasi rose akajairwa madhizaini emvura-based coatings.

(3) Hyperbranched polymer dispersants. Anonyanya kushandiswa hyperbranched dispersants iLubrizol 24000 uye BESM® 9240, ari amides + imides yakavakirwa pamapolyester marefu. Zvigadzirwa zviviri izvi zvigadzirwa zvine patent izvo zvinonyanya kuvimba nepolyester musana kudzikamisa pigment. Kugona kwavo kubata kabhoni dema kuchiri kwakanakisa. Zvisinei, polyester inopenya pamhepo yakadzika uye inowedzerawo mupende yakapedzwa. Dambudziko iri rinoreva kuti 24000 inogona kushandiswa mumainki chete. Mushure mezvose, inogona kuratidza yakanaka kwazvo kukura kwemavara uye kugadzikana kana ichishandiswa kuparadzira kabhoni dema muindasitiri yeinki. Kuti uvandudze kuita kwekristaro, Lubrizol 32500 uye BESM® 9245 yakaonekwa imwe mushure meimwe. Kuenzaniswa nemapoka maviri ekutanga, hyperbranched polymer dispersants ine spherical molecular chimiro uye yakanyanya kunyura pigment affinity mapoka, kazhinji ane yakasarudzika budiriro yeruvara uye yakasimba viscosity kuderedza kuita. Iko kuenderana kwe polyurethane dispersants inogona kugadziriswa pamusoro pehupamhi, kunyanya kuvhara ese alkyd resin kubva kumafuta marefu kusvika kuoiri mapfupi, ese akazara polyester resins, uye hydroxyl acrylic resins, uye inogona kudzikamisa yakawanda kabhoni dema uye organic pigments yezvimiro zvakasiyana. Sezvo kuchine huwandu hukuru hwemagiredhi akasiyana pakati pe6000-15000 mamorekuru uremu, vatengi vanofanirwa kuongorora kuenderana uye kuwedzera huwandu.

Inodzoreka yemahara radical polymerization dispersants
Mushure me1990, kudiwa kwemusika kwekupararira kwe pigment kwakawedzera kuvandudzwa uye pakave nebudiriro mupolymer synthesis tekinoroji, uye chizvarwa chazvino cheanodzorwa emahara radical polymerization dispersants akagadzirwa.

Inodzoreka yemahara radical polymerization (CFRP) ine yakanyatso dhizainiwa chimiro, ine anchoring boka kune imwe magumo epolymer uye chikamu chakagadziriswa kune imwe magumo. CFRP inoshandisa mamonomeri akafanana seakajairwa polymerization, asi nekuti mamonomers akarongwa zvakanyanya pazvikamu zvemamorekuru uye kugovera huremu hwemamorekuru kwakafanana, kuita kweiyo synthesized polymer dispersant ine kusvetuka kwehunhu. Iri boka rinoshanda rinosimbisa rinovandudza zvakanyanya anti-flocculation kugona kweanoparadzira uye kukura kwemavara epigment. Iyo chaiyo yakagadziriswa segment inopa yakadzikira yakaderera ruvara paste kugaya viscosity uye yakakwira pigment yekuwedzera, uye dispersant ine kuenderana kwakasiyana neyakasiyana resin base zvinhu.

Iko kuvandudzwa kwemazuva ano ekuputira ma dispersants ane nhoroondo isingasviki 100 makore. Kune akawanda marudzi ekuparadzira mavara akasiyana-siyana uye masisitimu pamusika. Mhedzisiro huru yekuparadzira zvinhu mbishi ichiri petrochemical raw materials. Kuwedzera chikamu chezvinhu zvinogoneka kugadziridzwa mune zvinoparadzira inzira inovimbisa yekusimudzira. Kubva pakuvandudza maitiro evanoparadzira, vanoparadzira vari kuramba vachiwedzera kushanda. Kunyangwe iri viscosity kuderedza kugona kana kukura kwemavara uye humwe hunyanzvi huri kuvandudza panguva imwe chete, maitiro aya anoenderera mberi mune ramangwana.

Nanjing Reborn New Materials inopawetting dispersant agent yependi uye coating, kusanganisira zvimwe zvinoenderana neDisperbyk.